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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A254374 Digital roots of centered pentagonal numbers (A005891).

Table of values

n a(n)
1 1
2 6
3 7
4 4
5 6
6 4
7 7
8 6
9 1
10 1
11 6
12 7
13 4
14 6
15 4
16 7
17 6
18 1
19 1
20 6
21 7
22 4
23 6
24 4
25 7
26 6
27 1
28 1
29 6
30 7
31 4
32 6
33 4
34 7
35 6
36 1
37 1
38 6
39 7
40 4
41 6
42 4
43 7
44 6
45 1
46 1
47 6
48 7
49 4
50 6
51 4
52 7
53 6
54 1
55 1
56 6
57 7
58 4
59 6
60 4
61 7
62 6
63 1
64 1
65 6
66 7
67 4
68 6
69 4
70 7
71 6
72 1
73 1
74 6
75 7
76 4
77 6
78 4
79 7
80 6
81 1
82 1
83 6
84 7
85 4
86 6

List of values

[1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6, 4, 7, 6, 1, 1, 6, 7, 4, 6]

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